/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.skatiger.jrove;

import java.lang.reflect.Method;


public interface TagLibrary {

    /**
     * If this library contains the specified function name
     * 
     * @param ns
     *            namespace
     * @param name
     *            function name
     * @return true if handled
     */
    public boolean containsFunction(String ns, String name);

    /**
     * If this library contains the passed namespace
     * 
     * @param ns
     *            namespace
     * @return true if the namespace is used in this library
     */
    public boolean containsNamespace(String ns);

    /**
     * If this library contains a TagHandler for the namespace and local name
     * 
     * @param ns
     *            namespace
     * @param localName
     *            local name
     * @return true if handled by this library
     */
    public boolean containsTagHandler(String ns, String localName);

    /**
     * Return a Method instance for the passed namespace and name
     * 
     * @param ns
     *            namespace
     * @param name
     *            function name
     * @return
     */
    public Method createFunction(String ns, String name);

    /**
     * Create a new instance of a TagHandler, using the passed TagConfig
     * 
     * @param ns
     *            namespace
     * @param localName
     *            local name
     * @param tag
     *            configuration information
     * @return a new TagHandler instance
     * @throws JroveException
     */
    public TagHandler createTagHandler(String ns, String localName, TagConfig tag) throws JroveException;

}
